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ST1952 Operation Manual 

71 

confirm whether the function is ON. 

 

6.3.16        Common Commands 

Common commands can be used to all equipments. We provide some common commands as below:   

 

*RST   

 

Command Syntax: 

*RST   

 

Description: 

Reset the instrument 
 

*

TRG 

Command Syntax: 

*TRG 

 
Description: 

Trigger the instrument for measurement 

 

*IDN?     

Query Syntax: 

*IDN? 

Query return: 

<product>,<version><LF^END> 

 
 

Here:   

                  <product>      ST1952 Digital Multimeter 
                    <version>      Ver1.0 
 
Description: 

Query information returned to instrument

 

Содержание ST1952

Страница 1: ...SOURCETRONIC Quality electronics for service lab and production 5 Digit Multimeter ST1952 User Manual...

Страница 2: ...al changes are incorporated October 2015 First Edition Announcement The description of the manual may not cover all functions of the instrument and our company is subject to change and to improve the...

Страница 3: ...r Line Connection 14 2 4 2 Input Terminals 14 2 4 3 High Energy Circuit Safety Precautions 15 2 4 4 Power on Defaults 15 Chapter 3 Basic Measurements 17 3 1 Preparation 17 3 2 Measuring Voltage 17 3 3...

Страница 4: ...mmand Reference 39 6 1 Command structure 39 6 2 Command Syntax 39 6 2 1 Commands and command parameters 39 6 2 2 Short form Rules 41 6 2 3 Basic Rules of Command Structure 41 6 2 4 Multiple Command Ru...

Страница 5: ...DC voltage from 1 V to 750V RMS DC current from 10nA to 12A AC current from 10nA to 12A AC DC current from 10nA to 12A RMS Resistance measurement from 1m to 100M Frequency from 1Hz to 1MHz Some addit...

Страница 6: ...nds user that hazards could damage the instruments if not according to operating instructions Such damage may invalidate the warranty 1 5 Incoming Inspection The ST1952 was carefully inspected mechani...

Страница 7: ...lems arising from normal wear or failure to follow instructions THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A...

Страница 8: ...solution Convenient test platform features High brightness VFD dual display Built in arithmetical operation function Short and diode test function Manual setup of reading hold function Portable shape...

Страница 9: ...within the selected tolerance 4 Shift Local keys Shift Used to access shifted keys Shift LOCAL Cancel RS232C remote control mode and back to the LOCAL mode 5 2nd Display key Control the secondary para...

Страница 10: ...panel bus selected HOLD Reading HOLD function is enabled REL Relative reading displayed MnMx Data statistics function is enabled Rmt Remote operation is in progress mX b Coefficient adjustment mX b fu...

Страница 11: ...gger mode 2 HOLD WIN Set the reading hold sensitivity band 3 HOLD CNT COUNT of readings for reading hold 4 RDGS STOR Data storage function is enabled 5 RDGS COUN Set the data storage number 6 SCAN RDG...

Страница 12: ...ture with three levels menus commands and parameters as shown in Figure 2 3 You can use down or up to move menu tree from one level to another Each of the three levels has several horizontal choices w...

Страница 13: ...ype connector for RS 232 operation 3 USB interface Use a USB B square connector Use USB wire for remote operation 4 Grounding Chassis Grounding terminal 5 Label Serial number for this instrument 6 Pow...

Страница 14: ...receptacle on the rear panel Connect the other end of the power cord to a grounded AC outlet WARNING The power cord supplied with the Model ST1952 contains a separate ground wire for use with grounde...

Страница 15: ...that decrease voltage spacing This diminishes arc protection and creates a hazardous condition Use the following sequence when measuring high energy circuits 1 De energize the circuit using the regul...

Страница 16: ...ts the factory default settings Setting Factory Default Function DCV Range Auto Range Rate FAST Remote Local Local Digits 5 Trigger Mode Immediate Relative Mode OFF Compare Mode OFF Hi Limit 1 Lo Limi...

Страница 17: ...red label above it For example to select the AC current function press Shift then press ACV ACI If you accidentally press Shift just press it again to turn off the Shift annunciator 3 2 Measuring Volt...

Страница 18: ...he lowest possible range for the best resolution 5 Internal resistance of voltage measurement DCV input impedance 10M 1000V 10V range 10G 1V 100mV range CAUTION Maximum Input voltage 1010VDC ACV Input...

Страница 19: ...e Current Measurement Connections 3 Range selection and switch Press toggles auto ranging Notice the AUTO annunciator is displayed with auto ranging If you want manual ranging use the RANGE and keys t...

Страница 20: ...tor is displayed with auto ranging If you want manual ranging use the RANGE and keys to select a measurement range consistent with expected resistance 4 How to acquire more accurate measurement result...

Страница 21: ...Measuring Diode Connection manner Connect test leads to the sources the same as resistance measurement connections Entering to the measurement function Beeper under conducting state The multimeter al...

Страница 22: ...ludes two sections charging stage and discharging stage Basic operation Connect the test leads to the sources the same as voltage measurement Press key to enter into the capacitance measurement functi...

Страница 23: ...fix m the unit is mV 1 00000 means 1V 100 000m means 100mV 3 The dB calculation takes the absolute value of the ratio VIN VREF 4 The largest negative value of dB is 160dB 3 10 2 dBm Calculation dBm is...

Страница 24: ...nt If the percent calculation is selected a reference value must be specified The displayed reading will be expressed as percent deviation from the reference value The percentage calculation is perfor...

Страница 25: ...s key again the b value is displayed 3 Press key to enter into the edit interface when displaying the m value and b value 4 Use keys to enter the data Use key to save the data and press key to cancel...

Страница 26: ...y is reaching 120000 Otherwise the scientific notation format is displayed Application method 1 Press key to enter into the Max Min math function The measurement result is displayed in the primary dis...

Страница 27: ...ement However you can use manual ranging for faster measurements since the multimeter doesn t have to determine which ranging to use for each measurement The multimeter returns back to auto ranging wh...

Страница 28: ...ual input zeroes the display as follows Displayed reading Actual Input Reference Note Select a range that cannot accommodate the relative value does not cause an overflow condition but it also does no...

Страница 29: ...ings per trigger The following paragraphs discuss front panel triggering and the reading hold feature 4 2 1 Trigger procedure Wait for Trigger The control source holds up operation until the programma...

Страница 30: ...e reading is held on the display until an out of window reading occurs to restart the hold process The reading hold feature allows you to capture and hold a stable reading on the display Take steps be...

Страница 31: ...r key to select 1 HI LIMIT or 2 LO LIMIT 4 Use or key to enter into the parameter setting interface The default value is HI 1 00000 LO 1 00000 5 Use keys to setup the parameters and press to save the...

Страница 32: ...e or key to select ON or OFF and press to save the setup 4 4 3 Display When the instrument is in remote control state the front display can be set to OFF for quick measurement speed When the display i...

Страница 33: ...cation standard RS232 stands for Recommend Standard number 232 and C is the latest revision of the standard The common RS232 signals are listed in Table 5 1 Table 5 1 Signal Definition Signal Code 25...

Страница 34: ...You can make the connection cable by yourself according the diagram or order one from our company Note Pin 4 and 6 pin 7 and 8 are shorted respectively at the end of controller B Sending and receiving...

Страница 35: ...ollows The serial interface is not connected correctly Check if the same baud rate is selected for both ST1952 and the controller When ST1952 is busy with executing a bus command ST1952 will not accep...

Страница 36: ...ta White 2 Data high terminal Data Green 3 Grounding GND Black 4 This instrument uses a square type socket and the pin sequence is as follows This instrument uses USB B type interface 5 2 2 USB Commun...

Страница 37: ...level is output FALL When the measurement result is lower than LO this signal is low level or high level is output EOC Measurement end signal The low output signal will be valid IN_VCC Internal power...

Страница 38: ...eter If using this signal to trigger the trigger mode must be set as EXT The time width of low level should not be less than 2 s EOC signal Low level valid pulse signal When one measurement is ended E...

Страница 39: ...1 for a sample Figure 6 1 Command Tree Example 6 2 Command Syntax The information in this section covers the syntax for both common commands and SCPI commands 6 2 1 Commands and command parameters Co...

Страница 40: ...Used to enable or disable an instrument operation 0 or OFF disables the operation and 1 or ON enables the operation Example CURRent AC RANGe AUTO ON Enable auto ranging name Name parameter Select a pa...

Страница 41: ...and word is a consonant retain it but drop all the letters after it Example format form If the command contains a question mark query or a non optional number included in the command word you must inc...

Страница 42: ...message must begin with the root command unless it is optional e g FUNCtion If the root is optional simply treat a command word on the next level as the root The colon at the beginning of a program me...

Страница 43: ...mmand Parameter b 0 or OFF Disable front panel display 1 or ON Enable front panel display Query ENABle Query state of the display Description This command is used to enable or disable front panel disp...

Страница 44: ...ect AC Current CURRent DC Select DC Current RESistance Select 2 wire Resistance FRESistance Select 4 wire Resistance FREQuency Select Frequency PERiod Select Period DIODe Select Diode Testing CONTinui...

Страница 45: ...rameter name VOLTage AC Select AC Voltage VOLTage DC Select DC Voltage CURRent AC Select AC Current CURRent DC Select DC Current FREQuency Select Frequency Query FUNCtion2 Query currently second progr...

Страница 46: ...ATe b STATe DATA CALCulate3 LIMit 1 UPPer n UPPer LOWer n LOWer STATe b Subsystem to control CALC1 Select math format NONE MXB PERCent Query math format Path to configure math calculations Set m facto...

Страница 47: ...to specify the format for the CALC1 math calculations With NONE selected no CALC1 calculation is performed With MXB or PERCent selected and enabled the result of the calculation is displayed The calcu...

Страница 48: ...ulation ACQuire Command syntax CALCulate 1 KMATh PERCent ACQuire Description This action command is used to acquire the present input signal reading and use it as the target value for the PERCent calc...

Страница 49: ...Mat Query programmed math format Description This command is used to specify the format for the CALC2 math calculation The calculation operations for CALC2 use data stored in the buffer With NONE sele...

Страница 50: ...limit to 1 Specify lower limit to 1 MINimum Specify limit to 100e6 MAXimum Specify limit to 100e6 Query UPPer Query upper limit LOWer Query lower limit Description This command is used to specify the...

Страница 51: ...this subsystem are used to configure and control voltage measurement function and are summarized in Table 6 6 Table 6 6 VOLTage Subsystem Commands Summary Command Function Description Default VOLTage...

Страница 52: ...SLOW 757 5 ON 0 OFF Speed Commands NPLCycles n Command Systax VOLTage AC NPLCycles n Set NPLC for ACV VOLTage DC NPLCycles n Set NPLC for DCV Command Parameter n SLOW FAST PLAC4 PLAC5 Set the test spe...

Страница 53: ...e AUTO b Set auto range for ACV VOLTage DC RANGe AUTO b Set auto range for DCV Command parameter b 1 or ON Enable auto range 0 or OFF Disable auto range Query AUTO Query auto range ON or OFF Descripti...

Страница 54: ...st command sent REFerence n or ACQuire eatablishes the reference When a reference is set using the REFerence n command the REFerence Query command returns the programmed value Conversely when a refere...

Страница 55: ...pically used to zero the display For example if the instrument is displaying a 1 V offset sending this command and enabling Reference zeroes the display This command is functional only if the instrume...

Страница 56: ...nable or disable reference Query state of reference Use input signal as reference Query reference value SLOW PLAC5 20 ON 0 OFF CURRent AC NPLCycles n NPLCycles RANGe UPPer n UPPer AUTO b AUTO REFerenc...

Страница 57: ...measurement range for ACI CURRent DC RANGe UPPer n Set measurement range for DCI Command Parameter n 1m 10m 100m01 10 A ACI 1m 10m 100m01 10 A DCI DEFault 1mA ACI DCI MINimum 1mA All functions MAXimum...

Страница 58: ...I 0 to 20 Reference for ACI DEFault 0 All measurement functions MINimum Mininum value for specified function MAXimum Maximum value for specified function Query REFerence Query reference for relative f...

Страница 59: ...ire reference for DCI Description When one of these commands is sent the measurement input signal is acquired and established as the reference value This command is typically used to zero the display...

Страница 60: ...range 100 1k 10k 100k 1M 10M 100M Query range Enable or disable auto range Query auto range Specify reference 0 to 20e6 Enable or disable reference Query state of reference Use input signal as referen...

Страница 61: ...b 1 or ON Enable auto range 0 or OFF Disable auto range Query AUTO Query auto range ON or OFF Description These commands are used to control auto ranging With auto ranging enabled the instrument autom...

Страница 62: ...d is coupled to the ACQuire command The last command sent REFerence n or ACQuire eatablishes the reference When a reference is set using the REFerence n command the REFerence Query command returns the...

Страница 63: ...d PERiod Subsystem Commands Summary Command Function Description Default FREQuency THReshold VOLTage RANGe n RANGe REFerence n STATe b STATe ACQuire REFerence Path to configure frequency Path to selec...

Страница 64: ...and the reference value Reading Input signal Reference From the front panel reference is called relative REL The REFerence n command is coupled to the ACQuire command The last command sent REFerence...

Страница 65: ...d measurement function Sending this command while in any other function causes an error Also if the latest reading is overflowed or a reading has not been triggered an error occurs when this command i...

Страница 66: ...ommand parameter b 1 or ON Enable auto range 0 or OFF Disable auto range Query AUTO Query auto range ON or OFF Description These commands are used to control auto ranging With auto ranging enabled the...

Страница 67: ...command is coupled to the ACQuire command The last command sent REFerence n or ACQuire eatablishes the reference When a reference is set using the REFerence n command the REFerence Query command retu...

Страница 68: ...ement function and are summarized in Table 6 11 Table 6 11 HOLD Subsystem Commands Summary Command Function Description Default HOLD WINDow NRf WINDow COUNt NRf COUNt STATe NRf STATe Path to control H...

Страница 69: ...se commands in this subsystem are used to configure and control trigger measurement function and are summarized in Table 6 12 Table 6 12 TRIGger Subsystem Commands Summary Command Function Description...

Страница 70: ...ng until there is a new reading This command will be automatically asserted when READ or MEASure command is sent 6 3 14 SPEED Subsystem SPEED ON set the speed as FAST OFF Set the speed as SLOW PLAC4 s...

Страница 71: ...provide some common commands as below RST Command Syntax RST Description Reset the instrument TRG Command Syntax TRG Description Trigger the instrument for measurement IDN Query Syntax IDN Query retu...

Страница 72: ...www sourcetronic com SOURCETRONIC GMBH Fahrenheitstrasse 1 28359 Bremen Germany T 49 421 2 77 99 99 F 49 421 2 77 99 98 info sourcetronic com www sourcetronic com skype sourcetronic...

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